[Chromium] Disable ENABLE_INPUT_TYPE_DATETIME
https://bugs.webkit.org/show_bug.cgi?id=109272

Reviewed by Kentaro Hara.

Source/WebKit/chromium:

We enabled this flag for desktop Chromium, but disabled the feature by a
runtime flag. We disables the compile flag too because we have no plan
to ship it in near future.

* features.gypi: Remove ENABLE_INPUT_TYPE_DATETIME.

LayoutTests:

* platform/chromium/TestExpectations:
Skip fast/forms/datetime and datetime-multiple-fields

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142290 268f45cc-cd09-0410-ab3c-d52691b4dbfc